An image forming apparatus has an operation panel and is operable from an operation panel and a mobile terminal. The image forming apparatus includes a holding unit, a vibration detecting unit, a communication unit, and a terminal recognition unit. The holding unit holds the mobile terminal. The vibration detecting unit detects a vibration of the mobile terminal held by the holding unit. The communication unit receives operation information wirelessly from the mobile terminal. The terminal recognition unit recognizes the mobile terminal from which an operation is to be accepted, on the condition that the timing of reception of the operation information by the communication unit coincides with the timing of detection of the vibration by the vibration detecting unit. The image forming apparatus disables acceptance of an operation from the operation panel in the case of accepting an operation from the mobile terminal.